46139340 has 96 divisors (see below), whose sum is σ = 140414400. Its totient is φ = 11252736.

The previous prime is 46139321. The next prime is 46139341. The reversal of 46139340 is 4393164.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 46139298 and 46139307.

It is not an unprimeable number, because it can be changed into a prime (46139341) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 116022 + ... + 116418.

It is an arithmetic number, because the mean of its divisors is an integer number (1462650).

Almost surely, 2^46139340 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 46139340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (70207200).

46139340 is an abundant number, since it is smaller than the sum of its proper divisors (94275060).

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

46139340 is a wasteful number, since it uses less digits than its factorization.

46139340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 571 (or 569 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 30.

The square root of 46139340 is about 6792.5944969503. The cubic root of 46139340 is about 358.6662063967. Note that the first 3 decimals are identical.

The spelling of 46139340 in words is "forty-six million, one hundred thirty-nine thousand, three hundred forty".