61344402 has 32 divisors (see below), whose sum is σ = 143480832. Its totient is φ = 17118864.

The previous prime is 61344397. The next prime is 61344403. The reversal of 61344402 is 20444316.

It is not an unprimeable number, because it can be changed into a prime (61344403) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15178 + ... + 18789.

It is an arithmetic number, because the mean of its divisors is an integer number (4483776).

Almost surely, 2^61344402 is an apocalyptic number.

61344402 is an abundant number, since it is smaller than the sum of its proper divisors (82136430).

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

61344402 is a wasteful number, since it uses less digits than its factorization.

61344402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34022.

The product of its (nonzero) digits is 2304, while the sum is 24.

The square root of 61344402 is about 7832.2667217096. The cubic root of 61344402 is about 394.3891685876.

Adding to 61344402 its sum of digits (24), we get a triangular number (61344426 = T₁₁₀₇₆).

Adding to 61344402 its reverse (20444316), we get a palindrome (81788718).

The spelling of 61344402 in words is "sixty-one million, three hundred forty-four thousand, four hundred two".