366621420 has 48 divisors (see below), whose sum is σ = 1119863808. Its totient is φ = 88877760.

The previous prime is 366621401. The next prime is 366621433. The reversal of 366621420 is 24126663.

It is a super-2 number, since 2×366621420² = 268822531205632800, which contains 22 as substring.

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, 277084 + ... + 278403.

It is an arithmetic number, because the mean of its divisors is an integer number (23330496).

Almost surely, 2^366621420 is an apocalyptic number.

366621420 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

366621420 is an abundant number, since it is smaller than the sum of its proper divisors (753242388).

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

366621420 is a wasteful number, since it uses less digits than its factorization.

366621420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 555510 (or 555508 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 30.

The square root of 366621420 is about 19147.3606536253. The cubic root of 366621420 is about 715.7136142308.

The spelling of 366621420 in words is "three hundred sixty-six million, six hundred twenty-one thousand, four hundred twenty".