46401390 has 64 divisors (see below), whose sum is σ = 141419520. Its totient is φ = 10605600.

The previous prime is 46401371. The next prime is 46401391. The reversal of 46401390 is 9310464.

46401390 is a `hidden beast` number, since 4 + 640 + 13 + 9 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (46401391) 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, 10386 + ... + 14165.

It is an arithmetic number, because the mean of its divisors is an integer number (2209680).

Almost surely, 2^46401390 is an apocalyptic number.

46401390 is an abundant number, since it is smaller than the sum of its proper divisors (95018130).

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

46401390 is a wasteful number, since it uses less digits than its factorization.

46401390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24574 (or 24568 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

The square root of 46401390 is about 6811.8565751196. The cubic root of 46401390 is about 359.3439440334.

The spelling of 46401390 in words is "forty-six million, four hundred one thousand, three hundred ninety".