139484744 has 32 divisors (see below), whose sum is σ = 299894400. Its totient is φ = 59579520.

The previous prime is 139484731. The next prime is 139484749. The reversal of 139484744 is 447484931.

It is a junction number, because it is equal to n+sod(n) for n = 139484695 and 139484704.

It is not an unprimeable number, because it can be changed into a prime (139484749) 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, 13412 + ... + 21420.

It is an arithmetic number, because the mean of its divisors is an integer number (9371700).

Almost surely, 2^139484744 is an apocalyptic number.

139484744 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

139484744 is an abundant number, since it is smaller than the sum of its proper divisors (160409656).

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

139484744 is a wasteful number, since it uses less digits than its factorization.

139484744 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8333 (or 8329 counting only the distinct ones).

The product of its digits is 387072, while the sum is 44.

The square root of 139484744 is about 11810.3659553800. The cubic root of 139484744 is about 518.6116119167.

The spelling of 139484744 in words is "one hundred thirty-nine million, four hundred eighty-four thousand, seven hundred forty-four".