61021432 has 16 divisors (see below), whose sum is σ = 121145760. Its totient is φ = 28715904.

The previous prime is 61021409. The next prime is 61021451. The reversal of 61021432 is 23412016.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 224208 + ... + 224479.

It is an arithmetic number, because the mean of its divisors is an integer number (7571610).

Almost surely, 2^61021432 is an apocalyptic number.

It is an amenable number.

61021432 is a deficient number, since it is larger than the sum of its proper divisors (60124328).

61021432 is a wasteful number, since it uses less digits than its factorization.

61021432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 448710 (or 448706 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 61021432 is about 7811.6215986183. The cubic root of 61021432 is about 393.6958151020.

Adding to 61021432 its reverse (23412016), we get a palindrome (84433448).

The spelling of 61021432 in words is "sixty-one million, twenty-one thousand, four hundred thirty-two".