1672712340 has 48 divisors (see below), whose sum is σ = 5043873408. Its totient is φ = 411744384.

The previous prime is 1672712333. The next prime is 1672712347. The reversal of 1672712340 is 432172761.

It is an interprime number because it is at equal distance from previous prime (1672712333) and next prime (1672712347).

It is a hoax number, since the sum of its digits (33) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1672712347) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1071472 + ... + 1073031.

It is an arithmetic number, because the mean of its divisors is an integer number (105080696).

Almost surely, 2^1672712340 is an apocalyptic number.

1672712340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1672712340 is an abundant number, since it is smaller than the sum of its proper divisors (3371161068).

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

1672712340 is a wasteful number, since it uses less digits than its factorization.

1672712340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2144528 (or 2144526 counting only the distinct ones).

The product of its (nonzero) digits is 14112, while the sum is 33.

The square root of 1672712340 is about 40898.8060950439. The cubic root of 1672712340 is about 1187.0629592476.

The spelling of 1672712340 in words is "one billion, six hundred seventy-two million, seven hundred twelve thousand, three hundred forty".