61472490 has 16 divisors (see below), whose sum is σ = 147534048. Its totient is φ = 16392656.

The previous prime is 61472461. The next prime is 61472519. The reversal of 61472490 is 9427416.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (61472461) and next prime (61472519).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1024512 + ... + 1024571.

It is an arithmetic number, because the mean of its divisors is an integer number (9220878).

Almost surely, 2^61472490 is an apocalyptic number.

61472490 is an abundant number, since it is smaller than the sum of its proper divisors (86061558).

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

61472490 is a wasteful number, since it uses less digits than its factorization.

61472490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2049093.

The product of its (nonzero) digits is 12096, while the sum is 33.

The square root of 61472490 is about 7840.4394009520. The cubic root of 61472490 is about 394.6634745235.

The spelling of 61472490 in words is "sixty-one million, four hundred seventy-two thousand, four hundred ninety".