61475340 has 24 divisors (see below), whose sum is σ = 172131120. Its totient is φ = 16393408.

The previous prime is 61475333. The next prime is 61475347. The reversal of 61475340 is 4357416.

It is an interprime number because it is at equal distance from previous prime (61475333) and next prime (61475347).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 61475298 and 61475307.

It is not an unprimeable number, because it can be changed into a prime (61475347) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 512235 + ... + 512354.

It is an arithmetic number, because the mean of its divisors is an integer number (7172130).

Almost surely, 2^61475340 is an apocalyptic number.

61475340 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

61475340 is an abundant number, since it is smaller than the sum of its proper divisors (110655780).

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

61475340 is a wasteful number, since it uses less digits than its factorization.

61475340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1024601 (or 1024599 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 30.

The square root of 61475340 is about 7840.6211488631. The cubic root of 61475340 is about 394.6695735851.

The spelling of 61475340 in words is "sixty-one million, four hundred seventy-five thousand, three hundred forty".