1372005434 has 8 divisors (see below), whose sum is σ = 2179067508. Its totient is φ = 645649600.

The previous prime is 1372005419. The next prime is 1372005461. The reversal of 1372005434 is 4345002731.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1180266025 + 191739409 = 34355^2 + 13847^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1372005397 and 1372005406.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20176517 + ... + 20176584.

Almost surely, 2^1372005434 is an apocalyptic number.

1372005434 is a deficient number, since it is larger than the sum of its proper divisors (807062074).

1372005434 is a wasteful number, since it uses less digits than its factorization.

1372005434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40353120.

The product of its (nonzero) digits is 10080, while the sum is 29.

The square root of 1372005434 is about 37040.5917069369. The cubic root of 1372005434 is about 1111.1822033719.

The spelling of 1372005434 in words is "one billion, three hundred seventy-two million, five thousand, four hundred thirty-four".