61415406 has 24 divisors (see below), whose sum is σ = 143303160. Its totient is φ = 18896976.

The previous prime is 61415399. The next prime is 61415413. The reversal of 61415406 is 60451416.

61415406 is a `hidden beast` number, since 614 + 1 + 5 + 40 + 6 = 666.

It is an interprime number because it is at equal distance from previous prime (61415399) and next prime (61415413).

It is a self number, because there is not a number n which added to its sum of digits gives 61415406.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 130996 + ... + 131463.

It is an arithmetic number, because the mean of its divisors is an integer number (5970965).

Almost surely, 2^61415406 is an apocalyptic number.

61415406 is an abundant number, since it is smaller than the sum of its proper divisors (81887754).

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

61415406 is a wasteful number, since it uses less digits than its factorization.

61415406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 262480 (or 262477 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 61415406 is about 7836.7981982440. The cubic root of 61415406 is about 394.5412738072.

The spelling of 61415406 in words is "sixty-one million, four hundred fifteen thousand, four hundred six".