402545000 has 160 divisors (see below), whose sum is σ = 1110019680. Its totient is φ = 134880000.

The previous prime is 402544997. The next prime is 402545029. The reversal of 402545000 is 545204.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 714719 + ... + 715281.

It is an arithmetic number, because the mean of its divisors is an integer number (6937623).

Almost surely, 2^402545000 is an apocalyptic number.

402545000 is a gapful number since it is divisible by the number (40) 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 402545000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (555009840).

402545000 is an abundant number, since it is smaller than the sum of its proper divisors (707474680).

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

402545000 is a wasteful number, since it uses less digits than its factorization.

402545000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 613 (or 594 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 20.

The square root of 402545000 is about 20063.5241171635. The cubic root of 402545000 is about 738.3656406476.

It can be divided in two parts, 40254 and 5000, that added together give a palindrome (45254).

The spelling of 402545000 in words is "four hundred two million, five hundred forty-five thousand".