46451820 has 48 divisors (see below), whose sum is σ = 137719008. Its totient is φ = 11658240.

The previous prime is 46451813. The next prime is 46451831. The reversal of 46451820 is 2815464.

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

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21751 + ... + 23790.

It is an arithmetic number, because the mean of its divisors is an integer number (2869146).

Almost surely, 2^46451820 is an apocalyptic number.

It is an amenable number.

46451820 is an abundant number, since it is smaller than the sum of its proper divisors (91267188).

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

46451820 is a wasteful number, since it uses less digits than its factorization.

46451820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45570 (or 45568 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 30.

The square root of 46451820 is about 6815.5572039269. The cubic root of 46451820 is about 359.4740777359.

The spelling of 46451820 in words is "forty-six million, four hundred fifty-one thousand, eight hundred twenty".