1634929490 has 16 divisors (see below), whose sum is σ = 2980126080. Its totient is φ = 645693360.

The previous prime is 1634929481. The next prime is 1634929519. The reversal of 1634929490 is 949294361.

It is an alternating number because its digits alternate between odd and even.

It is a Curzon 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, 1033976 + ... + 1035555.

It is an arithmetic number, because the mean of its divisors is an integer number (186257880).

Almost surely, 2^1634929490 is an apocalyptic number.

1634929490 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1634929490 is a deficient number, since it is larger than the sum of its proper divisors (1345196590).

1634929490 is a wasteful number, since it uses less digits than its factorization.

1634929490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2069617.

The product of its (nonzero) digits is 419904, while the sum is 47.

The square root of 1634929490 is about 40434.2613386222. The cubic root of 1634929490 is about 1178.0571038930.

The spelling of 1634929490 in words is "one billion, six hundred thirty-four million, nine hundred twenty-nine thousand, four hundred ninety".