1393652952 has 120 divisors (see below), whose sum is σ = 4014424260. Its totient is φ = 451707840.

The previous prime is 1393652951. The next prime is 1393652959. The reversal of 1393652952 is 2592563931.

It is a junction number, because it is equal to n+sod(n) for n = 1393652898 and 1393652907.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1393652951) by changing a digit.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 886327 + ... + 887897.

Almost surely, 2^1393652952 is an apocalyptic number.

1393652952 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1393652952, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2007212130).

1393652952 is an abundant number, since it is smaller than the sum of its proper divisors (2620771308).

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

1393652952 is a wasteful number, since it uses less digits than its factorization.

1393652952 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1663 (or 1613 counting only the distinct ones).

The product of its digits is 437400, while the sum is 45.

The square root of 1393652952 is about 37331.6615220914. The cubic root of 1393652952 is about 1116.9958159823.

The spelling of 1393652952 in words is "one billion, three hundred ninety-three million, six hundred fifty-two thousand, nine hundred fifty-two".