61402356 has 36 divisors (see below), whose sum is σ = 157761604. Its totient is φ = 20131200.

The previous prime is 61402333. The next prime is 61402361. The reversal of 61402356 is 65320416.

It can be written as a sum of positive squares in 2 ways, for example, as 6937956 + 54464400 = 2634^2 + 7380^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

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, 11785 + ... + 16176.

Almost surely, 2^61402356 is an apocalyptic number.

It is an amenable number.

61402356 is an abundant number, since it is smaller than the sum of its proper divisors (96359248).

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

61402356 is a wasteful number, since it uses less digits than its factorization.

61402356 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28032 (or 28027 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 61402356 is about 7835.9655435690. The cubic root of 61402356 is about 394.5133268110.

The spelling of 61402356 in words is "sixty-one million, four hundred two thousand, three hundred fifty-six".