1372155430 has 16 divisors (see below), whose sum is σ = 2473673904. Its totient is φ = 548019040.

The previous prime is 1372155401. The next prime is 1372155457. The reversal of 1372155430 is 345512731.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1372155392 and 1372155401.

It is a congruent number.

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, 98536 + ... + 111595.

It is an arithmetic number, because the mean of its divisors is an integer number (154604619).

Almost surely, 2^1372155430 is an apocalyptic number.

1372155430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1372155430 is a deficient number, since it is larger than the sum of its proper divisors (1101518474).

1372155430 is a wasteful number, since it uses less digits than its factorization.

1372155430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 210791.

The product of its (nonzero) digits is 12600, while the sum is 31.

The square root of 1372155430 is about 37042.6164032726. The cubic root of 1372155430 is about 1111.2226956344. Note that the first 3 decimals are identical.

The spelling of 1372155430 in words is "one billion, three hundred seventy-two million, one hundred fifty-five thousand, four hundred thirty".