396429090 has 16 divisors (see below), whose sum is σ = 951429888. Its totient is φ = 105714416.

The previous prime is 396429079. The next prime is 396429097. The reversal of 396429090 is 90924693.

It is not an unprimeable number, because it can be changed into a prime (396429097) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6607122 + ... + 6607181.

It is an arithmetic number, because the mean of its divisors is an integer number (59464368).

Almost surely, 2^396429090 is an apocalyptic number.

396429090 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

396429090 is an abundant number, since it is smaller than the sum of its proper divisors (555000798).

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

396429090 is a wasteful number, since it uses less digits than its factorization.

396429090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13214313.

The product of its (nonzero) digits is 104976, while the sum is 42.

The square root of 396429090 is about 19910.5271150716. The cubic root of 396429090 is about 734.6071851675.

The spelling of 396429090 in words is "three hundred ninety-six million, four hundred twenty-nine thousand, ninety".