1390542076 has 48 divisors (see below), whose sum is σ = 3131799552. Its totient is φ = 524289600.

The previous prime is 1390542059. The next prime is 1390542091. The reversal of 1390542076 is 6702450931.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 63271 + ... + 82366.

It is an arithmetic number, because the mean of its divisors is an integer number (65245824).

Almost surely, 2^1390542076 is an apocalyptic number.

It is an amenable number.

1390542076 is an abundant number, since it is smaller than the sum of its proper divisors (1741257476).

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

1390542076 is a wasteful number, since it uses less digits than its factorization.

1390542076 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145690 (or 145688 counting only the distinct ones).

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

The square root of 1390542076 is about 37289.9728613471. The cubic root of 1390542076 is about 1116.1640871167.

The spelling of 1390542076 in words is "one billion, three hundred ninety million, five hundred forty-two thousand, seventy-six".