1390952346 has 64 divisors (see below), whose sum is σ = 3328819200. Its totient is φ = 379060416.

The previous prime is 1390952341. The next prime is 1390952371. The reversal of 1390952346 is 6432590931.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a junction number, because it is equal to n+sod(n) for n = 1390952298 and 1390952307.

It is not an unprimeable number, because it can be changed into a prime (1390952341) 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 31 ways as a sum of consecutive naturals, for example, 94215 + ... + 107973.

It is an arithmetic number, because the mean of its divisors is an integer number (52012800).

Almost surely, 2^1390952346 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1390952346, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1664409600).

1390952346 is an abundant number, since it is smaller than the sum of its proper divisors (1937866854).

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

1390952346 is a wasteful number, since it uses less digits than its factorization.

1390952346 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13883.

The product of its (nonzero) digits is 174960, while the sum is 42.

The square root of 1390952346 is about 37295.4735323202. The cubic root of 1390952346 is about 1116.2738485349.

The spelling of 1390952346 in words is "one billion, three hundred ninety million, nine hundred fifty-two thousand, three hundred forty-six".