61469590 has 64 divisors (see below), whose sum is σ = 140636160. Its totient is φ = 18817920.

The previous prime is 61469587. The next prime is 61469623. The reversal of 61469590 is 9596416.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 27121 + ... + 29299.

It is an arithmetic number, because the mean of its divisors is an integer number (2197440).

Almost surely, 2^61469590 is an apocalyptic number.

61469590 is an abundant number, since it is smaller than the sum of its proper divisors (79166570).

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

61469590 is a wasteful number, since it uses less digits than its factorization.

61469590 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2237.

The product of its (nonzero) digits is 58320, while the sum is 40.

The square root of 61469590 is about 7840.2544601563. The cubic root of 61469590 is about 394.6572682672.

The spelling of 61469590 in words is "sixty-one million, four hundred sixty-nine thousand, five hundred ninety".