61163400 has 48 divisors (see below), whose sum is σ = 189608400. Its totient is φ = 16310080.

The previous prime is 61163393. The next prime is 61163423. The reversal of 61163400 is 436116.

It is a super-2 number, since 2×61163400² = 7481922999120000, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 50370 + ... + 51569.

It is an arithmetic number, because the mean of its divisors is an integer number (3950175).

Almost surely, 2^61163400 is an apocalyptic number.

61163400 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

61163400 is an abundant number, since it is smaller than the sum of its proper divisors (128445000).

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

61163400 is a wasteful number, since it uses less digits than its factorization.

61163400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101958 (or 101949 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 61163400 is about 7820.7032931828. The cubic root of 61163400 is about 394.0008932616. Note that the first 3 decimals are identical.

Adding to 61163400 its reverse (436116), we get a palindrome (61599516).

The spelling of 61163400 in words is "sixty-one million, one hundred sixty-three thousand, four hundred".