402047548 has 18 divisors (see below), whose sum is σ = 818454336. Its totient is φ = 172306008.

The previous prime is 402047539. The next prime is 402047557. The reversal of 402047548 is 845740204.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (402047539) and next prime (402047557).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1025436 + ... + 1025827.

Almost surely, 2^402047548 is an apocalyptic number.

It is an amenable number.

402047548 is an abundant number, since it is smaller than the sum of its proper divisors (416406788).

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

402047548 is a wasteful number, since it uses less digits than its factorization.

402047548 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2051281 (or 2051272 counting only the distinct ones).

The product of its (nonzero) digits is 35840, while the sum is 34.

The square root of 402047548 is about 20051.1233600514. The cubic root of 402047548 is about 738.0613658722.

The spelling of 402047548 in words is "four hundred two million, forty-seven thousand, five hundred forty-eight".