1390754620 has 24 divisors (see below), whose sum is σ = 2922581088. Its totient is φ = 555921600.

The previous prime is 1390754591. The next prime is 1390754621. The reversal of 1390754620 is 264570931.

It is a super-3 number, since 3×1390754620³ (a number of 28 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1390754620.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1390754621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7210 + ... + 53230.

It is an arithmetic number, because the mean of its divisors is an integer number (121774212).

Almost surely, 2^1390754620 is an apocalyptic number.

1390754620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1390754620 is an abundant number, since it is smaller than the sum of its proper divisors (1531826468).

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

1390754620 is a wasteful number, since it uses less digits than its factorization.

1390754620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47541 (or 47539 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 37.

The square root of 1390754620 is about 37292.8226338528. The cubic root of 1390754620 is about 1116.2209526844.

The spelling of 1390754620 in words is "one billion, three hundred ninety million, seven hundred fifty-four thousand, six hundred twenty".