61011432 has 96 divisors (see below), whose sum is σ = 176030400. Its totient is φ = 19035648.

The previous prime is 61011421. The next prime is 61011437. The reversal of 61011432 is 23411016.

It is a happy number.

61011432 is a `hidden beast` number, since 610 + 11 + 43 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (61011437) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 140688 + ... + 141120.

It is an arithmetic number, because the mean of its divisors is an integer number (1833650).

Almost surely, 2^61011432 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 61011432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (88015200).

61011432 is an abundant number, since it is smaller than the sum of its proper divisors (115018968).

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

61011432 is a wasteful number, since it uses less digits than its factorization.

61011432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 567 (or 560 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 61011432 is about 7810.9815004262. The cubic root of 61011432 is about 393.6743080506.

Adding to 61011432 its reverse (23411016), we get a palindrome (84422448).

The spelling of 61011432 in words is "sixty-one million, eleven thousand, four hundred thirty-two".