1631472402 has 96 divisors (see below), whose sum is σ = 3907685376. Its totient is φ = 444748320.

The previous prime is 1631472383. The next prime is 1631472407. The reversal of 1631472402 is 2042741361.

It is a self number, because there is not a number n which added to its sum of digits gives 1631472402.

It is not an unprimeable number, because it can be changed into a prime (1631472407) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3349803 + ... + 3350289.

It is an arithmetic number, because the mean of its divisors is an integer number (40705056).

Almost surely, 2^1631472402 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1631472402, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1953842688).

1631472402 is an abundant number, since it is smaller than the sum of its proper divisors (2276212974).

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

1631472402 is a wasteful number, since it uses less digits than its factorization.

1631472402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 644 (or 613 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 30.

The square root of 1631472402 is about 40391.4892273112. The cubic root of 1631472402 is about 1177.2261769242.

The spelling of 1631472402 in words is "one billion, six hundred thirty-one million, four hundred seventy-two thousand, four hundred two".