124072890 has 16 divisors (see below), whose sum is σ = 297775008. Its totient is φ = 33086096.

The previous prime is 124072889. The next prime is 124072891. The reversal of 124072890 is 98270421.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (124072889) and next prime (124072891).

It is not an unprimeable number, because it can be changed into a prime (124072891) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2067852 + ... + 2067911.

It is an arithmetic number, because the mean of its divisors is an integer number (18610938).

Almost surely, 2^124072890 is an apocalyptic number.

124072890 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

124072890 is an abundant number, since it is smaller than the sum of its proper divisors (173702118).

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

124072890 is a wasteful number, since it uses less digits than its factorization.

124072890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4135773.

The product of its (nonzero) digits is 8064, while the sum is 33.

The square root of 124072890 is about 11138.8011024526. The cubic root of 124072890 is about 498.7607845609.

The spelling of 124072890 in words is "one hundred twenty-four million, seventy-two thousand, eight hundred ninety".