401489370 has 96 divisors (see below), whose sum is σ = 1085819904. Its totient is φ = 102816000.

The previous prime is 401489353. The next prime is 401489377. The reversal of 401489370 is 73984104.

It is a happy number.

It is a super-2 number, since 2×401489370² = 322387428445993800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (401489377) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 420814 + ... + 421766.

It is an arithmetic number, because the mean of its divisors is an integer number (11310624).

Almost surely, 2^401489370 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 401489370, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (542909952).

401489370 is an abundant number, since it is smaller than the sum of its proper divisors (684330534).

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

401489370 is a wasteful number, since it uses less digits than its factorization.

401489370 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1148 (or 1145 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The square root of 401489370 is about 20037.1996546424. The cubic root of 401489370 is about 737.7196480685.

The spelling of 401489370 in words is "four hundred one million, four hundred eighty-nine thousand, three hundred seventy".