46139640 has 32 divisors (see below), whose sum is σ = 138419280. Its totient is φ = 12303872.

The previous prime is 46139603. The next prime is 46139651. The reversal of 46139640 is 4693164.

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, 192129 + ... + 192368.

Almost surely, 2^46139640 is an apocalyptic number.

46139640 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

46139640 is an abundant number, since it is smaller than the sum of its proper divisors (92279640).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

46139640 is a wasteful number, since it uses less digits than its factorization.

46139640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 384511 (or 384507 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 33.

The square root of 46139640 is about 6792.6165797872. The cubic root of 46139640 is about 358.6669837494. Note that the first 3 decimals are identical.

The spelling of 46139640 in words is "forty-six million, one hundred thirty-nine thousand, six hundred forty".