404052642 has 24 divisors (see below), whose sum is σ = 1000511616. Its totient is φ = 115443576.

The previous prime is 404052637. The next prime is 404052697. The reversal of 404052642 is 246250404.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1603258 + ... + 1603509.

It is an arithmetic number, because the mean of its divisors is an integer number (41687984).

Almost surely, 2^404052642 is an apocalyptic number.

404052642 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

404052642 is an abundant number, since it is smaller than the sum of its proper divisors (596458974).

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

404052642 is a wasteful number, since it uses less digits than its factorization.

404052642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3206782 (or 3206779 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 27.

The square root of 404052642 is about 20101.0607182805. The cubic root of 404052642 is about 739.2862865380.

The spelling of 404052642 in words is "four hundred four million, fifty-two thousand, six hundred forty-two".