1390018224 has 80 divisors (see below), whose sum is σ = 4171201280. Its totient is φ = 390631680.

The previous prime is 1390018213. The next prime is 1390018237. The reversal of 1390018224 is 4228100931.

It is a super-2 number, since 2×1390018224² = 3864301326104228352, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1390018191 and 1390018200.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13414 + ... + 54405.

It is an arithmetic number, because the mean of its divisors is an integer number (52140016).

Almost surely, 2^1390018224 is an apocalyptic number.

1390018224 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1390018224 is an abundant number, since it is smaller than the sum of its proper divisors (2781183056).

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

1390018224 is a wasteful number, since it uses less digits than its factorization.

1390018224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67898 (or 67892 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 30.

The square root of 1390018224 is about 37282.9481666887. The cubic root of 1390018224 is about 1116.0239071972.

The spelling of 1390018224 in words is "one billion, three hundred ninety million, eighteen thousand, two hundred twenty-four".