61088340 has 48 divisors (see below), whose sum is σ = 171541440. Its totient is φ = 16243200.

The previous prime is 61088323. The next prime is 61088341. The reversal of 61088340 is 4388016.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 61088298 and 61088307.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61088341) 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, 22791 + ... + 25329.

It is an arithmetic number, because the mean of its divisors is an integer number (3573780).

Almost surely, 2^61088340 is an apocalyptic number.

61088340 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

61088340 is an abundant number, since it is smaller than the sum of its proper divisors (110453100).

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

61088340 is a wasteful number, since it uses less digits than its factorization.

61088340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2952 (or 2950 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 30.

The square root of 61088340 is about 7815.9030188456. The cubic root of 61088340 is about 393.8396540621.

The spelling of 61088340 in words is "sixty-one million, eighty-eight thousand, three hundred forty".