1625342734 has 8 divisors (see below), whose sum is σ = 2503906488. Its totient is φ = 790707240.

The previous prime is 1625342723. The next prime is 1625342753. The reversal of 1625342734 is 4372435261.

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

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a junction number, because it is equal to n+sod(n) for n = 1625342693 and 1625342702.

It is a congruent number.

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, 10981972 + ... + 10982119.

It is an arithmetic number, because the mean of its divisors is an integer number (312988311).

Almost surely, 2^1625342734 is an apocalyptic number.

1625342734 is a deficient number, since it is larger than the sum of its proper divisors (878563754).

1625342734 is a wasteful number, since it uses less digits than its factorization.

1625342734 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21964130.

The product of its digits is 120960, while the sum is 37.

The square root of 1625342734 is about 40315.5396094360. The cubic root of 1625342734 is about 1175.7499926493.

Adding to 1625342734 its reverse (4372435261), we get a palindrome (5997777995).

The spelling of 1625342734 in words is "one billion, six hundred twenty-five million, three hundred forty-two thousand, seven hundred thirty-four".