378802890 has 48 divisors (see below), whose sum is σ = 986941800. Its totient is φ = 100803456.

The previous prime is 378802877. The next prime is 378802903. The reversal of 378802890 is 98208873.

It is an interprime number because it is at equal distance from previous prime (378802877) and next prime (378802903).

It can be written as a sum of positive squares in 4 ways, for example, as 378030249 + 772641 = 19443^2 + 879^2 .

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 23 ways as a sum of consecutive naturals, for example, 41676 + ... + 49944.

Almost surely, 2^378802890 is an apocalyptic number.

378802890 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

378802890 is an abundant number, since it is smaller than the sum of its proper divisors (608138910).

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

378802890 is a wasteful number, since it uses less digits than its factorization.

378802890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8791 (or 8788 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 45.

The square root of 378802890 is about 19462.8592452394. The cubic root of 378802890 is about 723.5542429219.

The spelling of 378802890 in words is "three hundred seventy-eight million, eight hundred two thousand, eight hundred ninety".