1351572040 has 64 divisors (see below), whose sum is σ = 3742824960. Its totient is φ = 427749120.

The previous prime is 1351572037. The next prime is 1351572119. The reversal of 1351572040 is 402751531.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 182016 + ... + 189295.

It is an arithmetic number, because the mean of its divisors is an integer number (58481640).

Almost surely, 2^1351572040 is an apocalyptic number.

1351572040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1351572040 is an abundant number, since it is smaller than the sum of its proper divisors (2391252920).

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

1351572040 is a wasteful number, since it uses less digits than its factorization.

1351572040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 371342 (or 371338 counting only the distinct ones).

The product of its (nonzero) digits is 4200, while the sum is 28.

The square root of 1351572040 is about 36763.7326722954. The cubic root of 1351572040 is about 1105.6382790984.

The spelling of 1351572040 in words is "one billion, three hundred fifty-one million, five hundred seventy-two thousand, forty".