1634021372 has 12 divisors (see below), whose sum is σ = 2860990440. Its totient is φ = 816595536.

The previous prime is 1634021321. The next prime is 1634021381. The reversal of 1634021372 is 2731204361.

It is a happy number.

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, 94847 + ... + 110742.

It is an arithmetic number, because the mean of its divisors is an integer number (238415870).

Almost surely, 2^1634021372 is an apocalyptic number.

It is an amenable number.

1634021372 is a deficient number, since it is larger than the sum of its proper divisors (1226969068).

1634021372 is a wasteful number, since it uses less digits than its factorization.

1634021372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 207580 (or 207578 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 29.

The square root of 1634021372 is about 40423.0302179339. The cubic root of 1634021372 is about 1177.8389470848.

The spelling of 1634021372 in words is "one billion, six hundred thirty-four million, twenty-one thousand, three hundred seventy-two".