61420492 has 24 divisors (see below), whose sum is σ = 127078560. Its totient is φ = 25415040.

The previous prime is 61420477. The next prime is 61420543. The reversal of 61420492 is 29402416.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a self number, because there is not a number n which added to its sum of digits gives 61420492.

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, 37009 + ... + 38632.

It is an arithmetic number, because the mean of its divisors is an integer number (5294940).

Almost surely, 2^61420492 is an apocalyptic number.

It is an amenable number.

61420492 is an abundant number, since it is smaller than the sum of its proper divisors (65658068).

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

61420492 is a wasteful number, since it uses less digits than its factorization.

61420492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75681 (or 75679 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 61420492 is about 7837.1226862925. The cubic root of 61420492 is about 394.5521645682.

The spelling of 61420492 in words is "sixty-one million, four hundred twenty thousand, four hundred ninety-two".