1424139720 has 32 divisors (see below), whose sum is σ = 4272419520. Its totient is φ = 379770560.

The previous prime is 1424139713. The next prime is 1424139767. The reversal of 1424139720 is 279314241.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5933796 + ... + 5934035.

It is an arithmetic number, because the mean of its divisors is an integer number (133513110).

Almost surely, 2^1424139720 is an apocalyptic number.

1424139720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1424139720 is an abundant number, since it is smaller than the sum of its proper divisors (2848279800).

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

1424139720 is a wasteful number, since it uses less digits than its factorization.

1424139720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11867845 (or 11867841 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 33.

The square root of 1424139720 is about 37737.7757691150. The cubic root of 1424139720 is about 1125.0820601870.

The spelling of 1424139720 in words is "one billion, four hundred twenty-four million, one hundred thirty-nine thousand, seven hundred twenty".