61469440 has 36 divisors (see below), whose sum is σ = 147241584. Its totient is φ = 24587264.

The previous prime is 61469437. The next prime is 61469449. The reversal of 61469440 is 4496416.

It is a junction number, because it is equal to n+sod(n) for n = 61469396 and 61469405.

It is not an unprimeable number, because it can be changed into a prime (61469449) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22732 + ... + 25291.

It is an arithmetic number, because the mean of its divisors is an integer number (4090044).

Almost surely, 2^61469440 is an apocalyptic number.

It is an amenable number.

61469440 is an abundant number, since it is smaller than the sum of its proper divisors (85772144).

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

61469440 is an equidigital number, since it uses as much as digits as its factorization.

61469440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48044 (or 48030 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 34.

The square root of 61469440 is about 7840.2448941344. The cubic root of 61469440 is about 394.6569472487.

The spelling of 61469440 in words is "sixty-one million, four hundred sixty-nine thousand, four hundred forty".