42631396 has 6 divisors (see below), whose sum is σ = 74604950. Its totient is φ = 21315696.

The previous prime is 42631387. The next prime is 42631409. The reversal of 42631396 is 69313624.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 38068900 + 4562496 = 6170^2 + 2136^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5328921 + ... + 5328928.

Almost surely, 2^42631396 is an apocalyptic number.

It is an amenable number.

42631396 is a deficient number, since it is larger than the sum of its proper divisors (31973554).

42631396 is a wasteful number, since it uses less digits than its factorization.

42631396 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10657853 (or 10657851 counting only the distinct ones).

The product of its digits is 23328, while the sum is 34.

The square root of 42631396 is about 6529.2722412226. The cubic root of 42631396 is about 349.3358725835.

It can be divided in two parts, 426313 and 96, that added together give a square (426409 = 653²).

The spelling of 42631396 in words is "forty-two million, six hundred thirty-one thousand, three hundred ninety-six".