402435025 has 48 divisors (see below), whose sum is σ = 545107968. Its totient is φ = 293832000.

The previous prime is 402434969. The next prime is 402435043. The reversal of 402435025 is 520534204.

It is not a de Polignac number, because 402435025 - 2¹³ = 402426833 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1907170 + ... + 1907380.

It is an arithmetic number, because the mean of its divisors is an integer number (11356416).

Almost surely, 2^402435025 is an apocalyptic number.

It is an amenable number.

402435025 is a deficient number, since it is larger than the sum of its proper divisors (142672943).

402435025 is a wasteful number, since it uses less digits than its factorization.

402435025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 382 (or 377 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 25.

The square root of 402435025 is about 20060.7832598830. The cubic root of 402435025 is about 738.2983942054.

Adding to 402435025 its reverse (520534204), we get a palindrome (922969229).

The spelling of 402435025 in words is "four hundred two million, four hundred thirty-five thousand, twenty-five".