124641690 has 64 divisors (see below), whose sum is σ = 306965376. Its totient is φ = 32378112.

The previous prime is 124641683. The next prime is 124641721. The reversal of 124641690 is 96146421.

It is a super-2 number, since 2×124641690² = 31071101772112200, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 440289 + ... + 440571.

It is an arithmetic number, because the mean of its divisors is an integer number (4796334).

Almost surely, 2^124641690 is an apocalyptic number.

124641690 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 124641690, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (153482688).

124641690 is an abundant number, since it is smaller than the sum of its proper divisors (182323686).

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

124641690 is a wasteful number, since it uses less digits than its factorization.

124641690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 623.

The product of its (nonzero) digits is 10368, while the sum is 33.

The square root of 124641690 is about 11164.3042774729. The cubic root of 124641690 is about 499.5217961212.

The spelling of 124641690 in words is "one hundred twenty-four million, six hundred forty-one thousand, six hundred ninety".