1390882461 has 8 divisors (see below), whose sum is σ = 1885942560. Its totient is φ = 911538672.

The previous prime is 1390882417. The next prime is 1390882463. The reversal of 1390882461 is 1642880931.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1390882461 - 2⁶ = 1390882397 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1390882463) 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, 3928870 + ... + 3929223.

It is an arithmetic number, because the mean of its divisors is an integer number (235742820).

Almost surely, 2^1390882461 is an apocalyptic number.

It is an amenable number.

1390882461 is a deficient number, since it is larger than the sum of its proper divisors (495060099).

1390882461 is an equidigital number, since it uses as much as digits as its factorization.

1390882461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7858155.

The product of its (nonzero) digits is 82944, while the sum is 42.

The square root of 1390882461 is about 37294.5366106083. The cubic root of 1390882461 is about 1116.2551534050.

It can be divided in two parts, 13908 and 82461, that added together give a palindrome (96369).

The spelling of 1390882461 in words is "one billion, three hundred ninety million, eight hundred eighty-two thousand, four hundred sixty-one".