46139904 has 240 divisors, whose sum is σ = 153204480. Its totient is φ = 13271040.

The previous prime is 46139879. The next prime is 46139911. The reversal of 46139904 is 40993164.

It is a super-2 number, since 2×46139904² = 4257781482258432, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1488369 + ... + 1488399.

It is an arithmetic number, because the mean of its divisors is an integer number (638352).

Almost surely, 2^46139904 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 46139904, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (76602240).

46139904 is an abundant number, since it is smaller than the sum of its proper divisors (107064576).

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

46139904 is a wasteful number, since it uses less digits than its factorization.

46139904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91 (or 72 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 36.

The square root of 46139904 is about 6792.6360126243. The cubic root of 46139904 is about 358.6676678170.

The spelling of 46139904 in words is "forty-six million, one hundred thirty-nine thousand, nine hundred four".