139674240 has 256 divisors, whose sum is σ = 506736000. Its totient is φ = 36347904.

The previous prime is 139674233. The next prime is 139674257. The reversal of 139674240 is 42476931.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 139674195 and 139674204.

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, 1019452 + ... + 1019588.

Almost surely, 2^139674240 is an apocalyptic number.

139674240 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 139674240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (253368000).

139674240 is an abundant number, since it is smaller than the sum of its proper divisors (367061760).

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

139674240 is a wasteful number, since it uses less digits than its factorization.

139674240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 224 (or 206 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 36.

The square root of 139674240 is about 11818.3856765634. The cubic root of 139674240 is about 518.8463576751.

The spelling of 139674240 in words is "one hundred thirty-nine million, six hundred seventy-four thousand, two hundred forty".