404142356 has 6 divisors (see below), whose sum is σ = 707249130. Its totient is φ = 202071176.

The previous prime is 404142341. The next prime is 404142367. The reversal of 404142356 is 653241404.

It can be written as a sum of positive squares in only one way, i.e., 382202500 + 21939856 = 19550^2 + 4684^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50517791 + ... + 50517798.

It is an arithmetic number, because the mean of its divisors is an integer number (117874855).

Almost surely, 2^404142356 is an apocalyptic number.

It is an amenable number.

404142356 is a deficient number, since it is larger than the sum of its proper divisors (303106774).

404142356 is a wasteful number, since it uses less digits than its factorization.

404142356 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101035593 (or 101035591 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 29.

The square root of 404142356 is about 20103.2921681997. The cubic root of 404142356 is about 739.3409984038.

The spelling of 404142356 in words is "four hundred four million, one hundred forty-two thousand, three hundred fifty-six".