403465625640 has 384 divisors, whose sum is σ = 1706684515200. Its totient is φ = 83836892160.

The previous prime is 403465625639. The next prime is 403465625663. The reversal of 403465625640 is 46526564304.

It is a happy number.

403465625640 is a `hidden beast` number, since 4 + 0 + 3 + 46 + 562 + 5 + 6 + 40 = 666.

It is a super-2 number, since 2×403465625640² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 235572 + ... + 928668.

It is an arithmetic number, because the mean of its divisors is an integer number (4444490925).

Almost surely, 2^403465625640 is an apocalyptic number.

403465625640 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 403465625640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (853342257600).

403465625640 is an abundant number, since it is smaller than the sum of its proper divisors (1303218889560).

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

403465625640 is a wasteful number, since it uses less digits than its factorization.

403465625640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 693142 (or 693125 counting only the distinct ones).

The product of its (nonzero) digits is 2073600, while the sum is 45.

The spelling of 403465625640 in words is "four hundred three billion, four hundred sixty-five million, six hundred twenty-five thousand, six hundred forty".