139070400 has 168 divisors, whose sum is σ = 521573760. Its totient is φ = 31779840.

The previous prime is 139070381. The next prime is 139070417. The reversal of 139070400 is 4070931.

It is a tau number, because it is divible by the number of its divisors (168).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 31531 + ... + 35669.

Almost surely, 2^139070400 is an apocalyptic number.

139070400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 139070400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (260786880).

139070400 is an abundant number, since it is smaller than the sum of its proper divisors (382503360).

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

139070400 is a wasteful number, since it uses less digits than its factorization.

139070400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4171 (or 4156 counting only the distinct ones).

The product of its (nonzero) digits is 756, while the sum is 24.

The square root of 139070400 is about 11792.8113696438. The cubic root of 139070400 is about 518.0975850099.

The spelling of 139070400 in words is "one hundred thirty-nine million, seventy thousand, four hundred".