1642464260 has 24 divisors (see below), whose sum is σ = 3457158936. Its totient is φ = 655464960.

The previous prime is 1642464251. The next prime is 1642464269. The reversal of 1642464260 is 624642461.

It is an interprime number because it is at equal distance from previous prime (1642464251) and next prime (1642464269).

It can be written as a sum of positive squares in 4 ways, for example, as 175880644 + 1466583616 = 13262^2 + 38296^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1642464260.

It is not an unprimeable number, because it can be changed into a prime (1642464269) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 86171 + ... + 103490.

It is an arithmetic number, because the mean of its divisors is an integer number (144048289).

Almost surely, 2^1642464260 is an apocalyptic number.

1642464260 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1642464260 is an abundant number, since it is smaller than the sum of its proper divisors (1814694676).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1642464260 is a wasteful number, since it uses less digits than its factorization.

1642464260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 190103 (or 190101 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 35.

The square root of 1642464260 is about 40527.3273236714. The cubic root of 1642464260 is about 1179.8640703328.

The spelling of 1642464260 in words is "one billion, six hundred forty-two million, four hundred sixty-four thousand, two hundred sixty".