61954460 has 48 divisors (see below), whose sum is σ = 140724864. Its totient is φ = 22821888.

The previous prime is 61954457. The next prime is 61954481. The reversal of 61954460 is 6445916.

It is a super-2 number, since 2×61954460² = 7676710227783200, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 61954460.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14042 + ... + 17918.

It is an arithmetic number, because the mean of its divisors is an integer number (2931768).

Almost surely, 2^61954460 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 61954460, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (70362432).

61954460 is an abundant number, since it is smaller than the sum of its proper divisors (78770404).

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

61954460 is a wasteful number, since it uses less digits than its factorization.

61954460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3950 (or 3948 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 35.

The square root of 61954460 is about 7871.1155499078. The cubic root of 61954460 is about 395.6922327249.

The spelling of 61954460 in words is "sixty-one million, nine hundred fifty-four thousand, four hundred sixty".